Add phpCodeSniffer to require-dev in composer.json
CS fixes in src
CS fixes in test
Merge pull request #964 from tommygnr/cs-fixes

CS fixes
Add composer installation instructions
Fix behat tests
Merge pull request #967 from tommygnr/fix-behat-tests

Fix behat tests
Merge branch 'release-2.0' of github.com:phpDocumentor/phpDocumentor2 into release-2.0

Conflicts:
	src/phpDocumentor/Console/Helper/ProgressHelper.php
[961]: Add handling of arguments without type in @method
Update template version constraints

Also drop "phpdocumentor/unified-asset-installer" as phpDocumentor does
not directly depend on it.
Merge pull request #968 from tommygnr/composer-install

Update template version constraints
Remove html purifier
Update dependencies
Change installed path for templates when vendored

See #597
Merge pull request #971 from tommygnr/template-install-dir

Change installed path for templates when vendored
Merge pull request #966 from tommygnr/composer-install-instructions

Composer install instructions
Change minimum-stablity to stable for composer

This should ease things substantially when phpDocumentor is a
dependency of another project
Merge pull request #973 from tommygnr/composer-stability

Change minimum-stablity to stable for composer
Prevent BC break by retrieving global assets from the abstract template
Merge branch 'release-2.0' of github.com:phpDocumentor/phpDocumentor2 into release-2.0